Clay–polymer nanocomposites:Progress and challenges for use in sustainable water treatment

Mukhopadhyay, Raj and Bhaduri, Debarati and Sarkar, Binoy and Rusmin, Ruhaida and Hou, Deyi and Khanam, Rubina and Sarkar, Subhas and Kumar Biswas, Jayanta and Vithanage, Meththika and Bhatnagar, Amit and Ok, Yong Sik (2020) Clay–polymer nanocomposites:Progress and challenges for use in sustainable water treatment. Journal of Hazardous Materials, 383. ISSN 0304-3894

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Abstract

Contaminant removal from water involves various technologies among which adsorption is considered to be simple, effective, economical, and sustainable. In recent years, nanocomposites prepared by combining clay minerals and polymers have emerged as a novel technology for cleaning contaminated water. Here, we provide an overview of various types of clay–polymer nanocomposites focusing on their synthesis processes, characteristics, and possible applications in water treatment. By evaluating various mechanisms and factors involved in the decontamination processes, we demonstrate that the nanocomposites can overcome the limitations of individual polymer and clay components such as poor specificity, pH dependence, particle size sensitivity, and low water wettability. We also discuss different regeneration and wastewater treatment options (e.g., membrane, coagulant, and barrier/columns) using clay–polymer nanocomposites. Finally, we provide an economic analysis of the use of these adsorbents and suggest future research directions.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Hazardous Materials
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2300/2307
Subjects:
ID Code:
140124
Deposited By:
Deposited On:
13 Jan 2020 09:25
Refereed?:
Yes
Published?:
Published
Last Modified:
24 Nov 2020 08:17